Hydrodynamic lubrication of journal-type bearings was demonstrated over the temperature range of 1200–1500 F with molten-salt 130 (62 LiF-37 BeF2-1 UF4, mole %). A number of demonstration tests were performed to investigate hydrodynamic lubrication at steady-state operating conditions, the ability to stop and restart rotation of the journal, performance over a range of Sommerfeld number from 0.009 to 2.0, thermal stability of the bearing material, and bearing configurations for sustaining unidirectional and bidirectional radial loading. These tests comprise 3900 hr of operation at high temperatures. As examples of the tests, one covered a period of 1000 hr at steady-state conditions and another covered a period of 272 hr, wherein 260 start-stop operations were performed. All the test bearings and journals were constructed of a nickel-molybdenum alloy. A molten-salt bearing was applied to a vertical centrifugal pump, and performance was satisfactory following initial tests wherein it was found that the bearing was being starved.Contributed by the ASLE Technical Committee on Bearings and Bearing Lubrication and presented at the Annual Meeting of the American Society of Lubrication Engineers held in Cincinnati, Ohio, April 1960.